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If the fluoride is consumed as sodium fluoride (45.24% ), what amount of sodium fluoride contains the recommended amount of fluoride?
how much energy is necessary to completely vaporize 75.0g of ice at 0 degrees celsius? the molar heat of fusion for
how could you separate zinc chloride and zinc sulfide? napthalene sublimes easily but potassium bromide does not. how
if the temperature of the aqueous ammonium chloshyride system in part b were to be increased to 30c predict how the
What is the solubility (in g/L) of silver(I) iodide at 25ºC. The solubility product constant for silver(I) iodide is 8.3 × 10-17 at 25ºC.
Predict whether each of the following oxides is acidic, basic, amphoteric, or neutral: CO2, NO2, Al2O3, CaO.
A 100.0 mL aliquot of a dibasic compound with Kb1= 1*10^-4 and Kb2 = 1*10^-8 was titrated with 1.00 M HCl and a base concentration of .100 M. Calculate what the pH of the solution would be after 15.0 mL of the acid was added to the 100 mL aliquot ..
Calculated the volume of 1 M solution of HCl needed for 1 unit shift of the pH of the following solutions
Solid NaF has the so-called NaCl structure. The shortest distance between the centre of a sodium cation and the centre of a fluoride anion is 231.5 pm.
The electrode of a pH meter is placed in a sample of urine and a reading of 7.9 is obtained. Is the sample acidic basic, or neutral? What is the concentration of H3O+ in the urine sample?
Calculate the molarity of a solution made by dissolving 0.650 grams of Na2SO4 in enough water to form exactly 880 mL of solution.
At a certain temperature 16.7 mL of .45 M NaOH solution is required to titrate 30.0 ML of a 0.1 M KCL solution saturated with potassium bitartrate. What is the Ksp of KHT at this temperature
Methyl benzoate - Acid and Base Organic Chemistry, In preparation of methyl benzoate, what is the purpose of 1. washing the organic layer with sodium bicarbonate solution?
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